EP0140284B1 - Relais électromagnétique et méthode pour sa fabrication - Google Patents

Relais électromagnétique et méthode pour sa fabrication Download PDF

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Publication number
EP0140284B1
EP0140284B1 EP84112526A EP84112526A EP0140284B1 EP 0140284 B1 EP0140284 B1 EP 0140284B1 EP 84112526 A EP84112526 A EP 84112526A EP 84112526 A EP84112526 A EP 84112526A EP 0140284 B1 EP0140284 B1 EP 0140284B1
Authority
EP
European Patent Office
Prior art keywords
coil body
relay
pole plates
relay according
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84112526A
Other languages
German (de)
English (en)
Other versions
EP0140284A1 (fr
Inventor
Helmut Dipl.-Ing. Schedele
Josef Schweiger
Heinz Stadler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19833338208 external-priority patent/DE3338208A1/de
Priority claimed from DE19848411399 external-priority patent/DE8411399U1/de
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT84112526T priority Critical patent/ATE35748T1/de
Publication of EP0140284A1 publication Critical patent/EP0140284A1/fr
Application granted granted Critical
Publication of EP0140284B1 publication Critical patent/EP0140284B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/023—Details concerning sealing, e.g. sealing casing with resin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H01H51/2245—Armature inside coil
    • H01H51/2254—Contact forms part of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0285—Casings overmoulded over assembled switch or relay

Definitions

  • the invention relates to an electromagnetic relay according to the first part of claim 1 and a method for producing such a relay.
  • a relay of the type mentioned above is known from DE-B 2723220.
  • the design is selected so that a good magnetic coupling is possible on the end faces of the coil body, namely on one end a coupling of the pole plates to a flat permanent magnet and on the other end a coupling of the flux transition plate to a ferromagnetic housing cap.
  • this construction also makes it possible to largely close off the contact space with a sealing film on both end faces of the coil body, so that even when the relay is later embedded in casting resin, the low-viscosity casting compound cannot penetrate into the interior of the coil body.
  • the object of the invention is to make the relay mentioned at the outset even simpler to manufacture by simplifying the design of the individual parts, in the process improving and simplifying the preliminary sealing with a sealing film on both end faces, but at the same time, with the simplest possible part design, also a good closure of the permanent magnetic circuit and of the exciter flow circuit to guarantee.
  • pole plates and spacer lugs on one coil flange and of connecting webs and edge bead on the other coil flange creates a flat contact surface for a sealing film on both ends of the coil body, so that this film only needs to be designed as a flat sheet, so that is easy to apply and also ensures a good seal.
  • metal parts i.e. Pole plates on one side and flux transition plate on the other side
  • there is also a good magnetic coupling through the thin sealing film so that a good coupling for a flat, four-pole permanent magnet on the pole plates and a good coupling for a frame-shaped yoke or on the flux transition plate is also achieved for a ferromagnetic cap.
  • the gaps formed between the pole plates on the one hand and the spacer lugs on the other are angled like a labyrinth. This ensures that when the relay is potted between the sealing film and the coil body, casting resin penetrating must travel as long as possible to the contact space and come to a standstill.
  • the pole plates themselves are expediently cranked in the area between the spacer lugs towards the armature. This creates a sufficient distance between the sealing film and the switching point; in addition, there is an expansion of the capillary gap between the pole plates and the sealing film towards the contact space, whereby the casting resin, if it penetrates so far at all, comes to a standstill.
  • pole plates are expediently symmetrical with respect to the coil axis, if one disregards the connecting pins which are guided downwards in parallel. It is possible to produce only one form of pole plate with connecting pins formed on both sides and to cut off one of the connecting pins before installation.
  • the armature is cut free at its fastening end relative to the film, it only having two connecting webs lying flush in the edge bead of the coil body. Characterized the mobility of the armature when switching is not hindered by a ekanke on sealing foil g, also is prevented from flowing casting compound that there and the spring constant of the armature additionally influenced (capillary). On the other hand, the desired good sealing is achieved by the connecting webs in the bead.
  • the relay is polarized with a flat, four-pole permanent magnet arranged on the pole plates, a frame-shaped yoke enclosing the entire relay.
  • This yoke can consist of two identical sheet metal brackets rotated by 180 ° relative to one another and overlapping one another in the winding area. But it can also be designed as a one-piece frame, which is deformed in the area of the coil winding to compensate for tolerances.
  • the yoke arrangement is formed from two U-shaped sheet metal brackets fitted in opposite directions to one another, the central sections of which run axially parallel on both sides of the coil and the end legs of which are located one above the other in pairs in front of the two end faces of the relay, the matched to one another Surfaces of the abutting end legs of both sheet metal brackets together cover essentially the entire end face of the relay. This ensures that each of the two sheet metal brackets, from the permanent magnet to the flux transition sheet at the opposite relay end, forms a continuous flow path for the permanent magnetic flux, but also for the control flow, whereby this flow path is not interrupted by any air gaps.
  • Both sheet metal brackets can be designed essentially identically and can be attached to the relay by rotating them through 180 °. It is expedient that the end legs, each having approximately half the width in relation to the central section of the sheet metal bracket, are formed on one side of the central section in the lower region and on the other side of the central section in the upper region. A different design of the end legs would also be conceivable. It is only important that the end legs that meet from the two sheet metal brackets of the relay end face are coordinated in such a way that they do not overlap, but instead cover the entire end face of the relay lying in a common plane in order to allow as little leakage flux to escape.
  • the relay including the yoke is expediently embedded on all sides in a casting compound which is only penetrated by the connecting pins and spacer knobs arranged on all sides. These knobs are used to ensure uniform encapsulation with potting compound when the relay is cast in a mold. On the connection side of the relay, they also form spacing lugs for installation on printed circuit boards.
  • the relay shown in FIGS. 1 to 6 has a coil body 1 with a winding 2, an axial cavity 3 and end-side coil flanges 4 and 5.
  • a tongue-shaped armature 6 is fastened with a fastening end 6a in the area of the coil flange 4 via lateral tabs 7, while the free end 6b of the armature can be switched between two pole plates 8 and 8 'in the region of the coil flange 5.
  • These two pole sheets 8 and 8 ' lie essentially flat on the end face of the coil body and, with the interposition of a sealing film 9, form a support surface for a flat, four-pole permanent magnet 10.
  • a connecting pin 8a or 8' is attached to each of the pole sheets 8 and 8 '. 8a '.
  • the contacting ends 8b and 8b ' are cranked into the coil body in order to form contact surfaces there as well as pole surfaces for the armature end 6b.
  • the cranking of the pole plates 8 and 8 ' shifts the working air gaps away from the permanent magnet, so that the permanent magnet poles are better separated from one another.
  • by moving the working air gaps or contact points away from the permanent magnet 10 and from the sealing film 9 an adverse effect of length tolerances of the armature is avoided, and sparks occurring during switching cannot damage the film.
  • the cranked pole plates 8 and 8 'protrude contactlessly on the contact side (8b, 8b') into the coil body opening 3a, as a result of which no capillary gaps can form, and therefore no casting resin can penetrate to the contact surfaces.
  • the armature 6 continues to form a flux transition plate 11 on the coil flange 4, which lies flat on the end face of the coil flange 5.
  • a sealing film 12 is placed over this flow guide plate 11, which, like the sealing film 9, can be designed as a composite film and is fastened, for example, to the end face of the coil body by means of a warm stamp.
  • the entire relay is embedded in potting compound.
  • the fully assembled relay including permanent magnet and yoke each placed in a mold, into which the casting compound is then filled.
  • the coil body has spacer knobs 14 projecting on all sides. In the area of the connection side, these spacer knobs also pass into spacer lugs 15, which are not completely embedded in casting compound and, in a manner known per se, serve to provide a spacing for removing soldering fumes when the relay is soldered onto printed circuit boards.
  • the coil former 1 is shown in a perspective view of the coil flange 4 together with the specially adapted armature 6.
  • the armature is fastened, for example glued, in the grooves 4a of the coil body flange 4 with the fastening tabs 7 already mentioned.
  • the flux transition plate 11 formed on the armature lies in an end-side recess 16 of the coil former flange, the depth of which is somewhat greater than the thickness of the flow transition plate 11.
  • a bead 17 is formed on the coil flange, which on one side in a recess 11a of the river transition plate and continues on the other side of the bobbin opening 3, thereby also enclosing a getter space 18 in the same plane for receiving a columnar getter tablet 19.
  • the getter space 18 has a holding web 18a which is adapted to the contour of the columnar getter 19 at the top and bottom.
  • the getter 19 is thus fixed at the ends, while its middle part is exposed, so that the air from the coil interior connected to the getter space 18 reaches the getter surface unhindered.
  • FIG. 6 shows a perspective view of the other side of the coil former 1 with the coil flange 5, on which the pole plates 8 and 8 'are placed.
  • the coil former flange 5 has mutually opposite, T-shaped spacing lugs 23, against which the pole plates 8 and 8 'each lie laterally, as a result of which the contact distance or the working air gap between the two pole plates is defined.
  • these spacer lugs 23 each engage with cutouts 8c and 8c 'of the pole plates 8 and 8 ' , so that there is a labyrinthine course of the gap formed between the two parts. This makes it difficult for the casting compound to flow into the inside of the coil body.
  • Retaining lugs 24 are formed in the edge regions of the coil flange 5, on which the pole sheets 8 and 8 'are supported in cutouts 8d and 8d'. With this support, the pole plates 8 and 8 'are pressed against the spacer lugs 23, ribs 8e and 8e' ensuring tolerance compensation.
  • the height of the spacer lugs 23 corresponds exactly to the thickness of the pole plates 8 or 8 ', and the height of the holding lugs 24 also suitably corresponds to this thickness. In the region of the coil flange 5, this also results in a flat contact surface for the sealing film 9 surrounding the coil body opening.
  • the two pole plates 8 and 8 ' can initially be completely identical in the strip. Thus, only a pole plate 8 with two connecting pins 8a or 8a 'is punched out and bent. Then, depending on the installation position, either the connecting pin 8a '(for the pole plate 8) or the connecting pin 8a (for the pole plate 8') is cut off from the strip. The two identically designed pole plates are then installed rotated by 180 ° against each other.
  • the individual identical pole sheets 8 or 8 ' are punched and shaped on a sheet metal strip 25 with only one connecting pin 8a or 8a' in between.
  • the strip is then either cut through at the separating points 26 in order to obtain pole plates 8 with connecting pins 8a, or the strip is cut through at the separating points 27 in order to obtain pole plates 8 'with connecting pins 8a'.
  • a modified relay is shown in four sectional views, which has the same advantages as the previously described embodiment. Only the switching axis of the armature is rotated compared to the previously described embodiment, it is now horizontal.
  • the structure of the relay is otherwise comparable. It has a coil former 31 with a winding 32, an interior 33 and two flanges 34 and 35.
  • An armature 36 is arranged inside, which is fastened on one side to the coil flange 34 by means of fastening tabs 37 and with its free end between two pole plates 38 and 38 'is switchable.
  • a sealing film 39 lies on the pole plates 38 and 38 ' , on which a four-pole permanent magnet 40 is arranged.
  • the armature forms two laterally formed flow transition plates 41 a sealing film 42 is closed, and a yoke 43 is provided to close the magnetic circuits.
  • the yoke is designed as a U-shaped bracket, which rests with its central part on the permanent magnet 40 and with its two ends on the flux transition plates 41.
  • a circumferential bead 47 is provided, which surrounds the coil body opening 33 including a getter space 48 for receiving a getter 49 and has only two recesses 50 in which connecting webs 51 of the armature lie. These connecting webs end flat on the end face with the surface of the bead 47, so that a flat contact surface for the sealing film 42 is formed.
  • pole plates 38 and 38 ' are also adapted to the horizontal position of the armature 36.
  • the rest of the design corresponds to the previous embodiment.
  • the height of the spacing lugs 53 and also the holding lugs 54 corresponds to the thickness of the pole plates 38 and 38 ', respectively, so that a flat contact surface for the sealing film 39 is also created here. In a comparable way, this relay is finally embedded in cast resin.
  • the relay shown in FIGS. 12 and 13 is constructed essentially as the relay according to FIGS. 1 to 10.
  • a yoke arrangement is provided, which is formed by two U-shaped sheet metal brackets 61 and 62 made of ferromagnetic material.
  • the two sheet metal brackets 61 and 62 are identical and rotated against each other by 180 ° so that they can be pushed over the relay from both sides.
  • the end legs 61b and 62c lie one above the other in front of the coil flange 5 and cover the entire end face of the permanent magnet 10, while at the other end of the relay the end legs 61c and 62b cover the end face on the coil flange 4 in one plane.
  • Each of the two sheet metal brackets 61 and 62 thus forms a closed flow path without permanent air gap from the permanent magnet 10 to the flux transition sheet 11, which results in a good flux of the magnetic circuit.
  • sheet metal brackets 61 and 62 are very simple, since they can easily be punched on the strip. Assembly is also easy; The end legs are rounded off to make installation easier. These end legs are also slightly pretensioned inwards so that they have to be slightly bent open for assembly and then apply their pretension to the two end faces of the relay. The relay can then be cast with the attached sheet metal brackets 61 and 62 in an additional protective cap or without a protective cap in a mold.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)

Claims (19)

1. Relais électromagnétique avec une armature (6; 36) en forme de languette, disposée dans une ouverture (3; 33) axiale et traversante d'un corps de bobine (1; 31), et qui est fixée par une extrémité de fixation (6a), dans la zone d'un premier flasque (4; 34) du corps de bobine, alors que son extrémité libre (6b) est commutable, dans la zone du second flasque (5; 35) du corps de bobine, entre deux tôles polaires (8, 8'; 38, 38'), du type dans lequel il est formé, à l'extrémité de fixation de l'armature (6; 36), une tôle de passage du flux (11; 41) qui repose sur le premier flasque de bobine, dans lequel les tôles polaires (8, 8'; 38, 38') reposent à plat sur le côté frontal du second flasque (5; 35) du corps de bobine et sont maintenues, à l'aide de surfaces d'appui du flasque du corps de bobine, à la distance de contact prédéterminée, et dans lequel une feuille d'étanchéité (9, 12; 39, 42) est disposée sur les côtés frontaux aussi bien du premier flasque (4; 34) du corps de bobine que sur le second flasque (5; 35) du corps de bobine, caractérisé par le fait
- que sur le côté frontal du premier flasque (4; 34) du corps de bobine est conformé un bourrelet périphérique (17; 47) qui entoure l'ouverture du corps de bobine et qui est interrompu uniquement en deux points opposés respectivement par une barrette de liaison (21; 51) qui s'étendent entre l'armature (6; 36) et la tôle de passage du flux (11; 41), les barrettes de liaison (21; 51) se terminant par une surface plane qui est de niveau avec la surface du bourrelet et forme avec cette dernière une surface d'appui plane pour une feuille d'étanchéité (12; 42), - que les surfaces d'appui pour les tôles polaires (8, 8'; 38, 38') sur le second flasque (5; 35) du corps de bobine sont formées par des becs-entretoises (23; 53) qui débordent, en deux points opposés de l'ouverture (3; 33) du corps de bobine, la surface frontale du flasque (5; 35) du corps de bobine sur une hauteur qui est égale à l'épaisseur des tôles polaires (8, 8' ; 38, 38' ), et
- que les tôles polaires (8, 8' ; 38, 38') sont sensiblement plates, portent chacune, par un bord intérieur, contre les becs-entretoises (23; 53) et prennent respectivement appui, par un bord extérieur, sur un bec de support (24; 54) prévu sur le bord du flasque (5; 35) du corps de bobine, la réalisation étant telle que les deux tôles polaires (8, 8'; 38, 38') forment, avec les deux becs-entretoises (24; 54) également une surface d'appui plane pour une feuille d'étanchéité (9; 39) qui entoure, sans interruption, l'ouverture (3; 33) du corps de bobine.
2. Relais selon la revendication 1, caractérisé par le fait que la fente qui est formée entre les tôles polaires (8, 8'; 38, 38') d'une part et les becs-entretoises (23; 53) d'autre part, sont coudées à la manière d'un labyrinthe.
3. Relais selon la revendication 1 ou 2, caractérisé par le fait que les becs-entretoises (23; 53) possèdent une section transversale en forme de T.
4. Relais selon l'une des revendications 1 à 3, caractérisé par le fait que les tôles polaires (8, 8' ; 38,38') sont coudées dans la zone comprise entre les becs-entretoises (23; 53) en direction vers l'armature et pénètrent, sans contact, dans l'ouverture (3a) du corps de bobine.
5. Relais selon l'une des revendications 1 à 4, caractérisé par le fait que les tôles polaires (8,8'), abstraction faite de leurs chevilles de branchement (8a, 8a'), sont réalisées et disposées symétriquement par rapport à l'axe de la bobine.
6. Relais selon l'une des revendications 1 à 5, caractérisé par le fait que l'armature (6; 36) comporte, à son extrémité de fixation (6a; 36a), une ouverture (22) qui est située entre les deux barrettes de liaison (2; 51).
7. Relais selon l'une des revendications 1 à 6, caractérisé par le fait que l'armature (6; 36) comporte, à son extrémité de fixation (6a) des pattes latérales (7) qui sont fixées dans des gorges (4a) du corps de bobine et qui, de plus, sont fixées par une résine de coulée dans des chambres agrandies (4c) du corps de bobine (1).
8. Relais selon l'une des revendications 1 à 7, caractérisé par le fait que dans un flasque de bobine (4) est conformée une chambre de dégazage (18) qui est en liaison avec l'espace intérieur du corps de bobine (3), laquelle chambre de dégazage comporte des barrettes de maintien (18a) qui sont adaptées aux contours d'un dégazeur (19) ayant le forme d'une colonne, la réalisation étant telle que le dégazeur (19) est fixé à ses extrémités et est dégagé dans sa partie médiane.
9. Relais selon l'une des revendications 1 à 8, caractérisé par le fait que sur les tôles polaires (8, 8' ; 38, 38') est disposé un aimant permanent quadripolaire et plat (10; 40) et qu'une armature (13; 43) en forme de cadre ou d'étrier entoure le relais.
10. Relais selon la revendication 9, caractérisé par le fait que l'armature (13) est constituée par deux étriers de tôle (13a) qui sont identiques, décalés entre eux de 180° et se recouvrant mutuellement dans la zone de l'enroulement.
11. Relais selon la revendication 9, caractérisé par le fait que la culasse est réalisée sous la forme d'un cadre d'une seule pièce, qui est déformé, pour la compensation des tolérances, dans la zone de l'enroulement de la bobine.
12. Relais selon l'une des revendications 1 à 8, caractérisé par le fait que l'agencement de la culasse est constitué par deux étriers de tôle (61,62) en forme de U engagés en sens inverse sur le relais, et dont les sections médianes (61a, 62a) s'étendent des deux côtés de la bobine (2) et parallèlement à l'axe et dont les branches d'extrémité (61 b, 61 c; 62b, 62c se situent respectivement et par paires, devant les deux côtés frontaux du relais et l'un au-dessus de l'autre dans un plan commun, les surfaces, adaptées entre elles, des branches d'extrémité (61b, 62c; 61c, 62b) des deux étriers de tôle (61, 62) et qui butent l'une contre l'autre, recouvrent, en commun, et pour l'essentiel, la surface frontale totale du relais.
13. Relais selon la revendication 12, caractérisé par le fait que les deux étriers en tôle (61, 62) sont, pour l'essentiel, réalisés de façon identique et sont disposés sur le relais avec un décalage mutuel de 180°.
14. Relais selon la revendication 12 ou 13, caractérisé par le fait que les branches d'extrémité (61 b, 61 c, 62b, 62c) qui possèdent, par rapport à la section médiane (61 a, 62a) à peu près la demi- largeur, sont conformées sur un côté de la partie médiane (61a, 62a) dans la zone inférieure, et de l'autre côté de la partie médiane, dans la zone supérieure.
15. Relais selon l'une des revendications 12 à 14, caractérisé par le fait que les branches d'extrémité (61 b, 61 c; 62b, 62c) des étriers de culasse (61, 62) sont préarmées respectivement en direction du corps de bobine (1).
16. Relais selon l'une des revendications 1 à 15, caractérisé par le fait qu'il est, de toutes parts, entouré d'une masse de coulée (25) qui est uniquement traversée par les broches de branchement (8a, 8a'; 38, 38'; 26) ainsi que par des no- pes-entretoises (14) du corps de bobine (1; 31), qui sont prévues sur chaque côté extérieur.
17. Procédé pour la fabrication d'un relais selon l'une des revendicatios 1 à 16, caractérisé par le fait que les deux tôles polaires (8, 8') sont découpées et pliées de façon identique avec des languettes de branchement (8a, 8a') qui sont conformées sur deux côtés opposés, qu'ensuite, et selon la position de montage qui est prévue, l'une des languettes de branchement (8a, 8a') est découpée dans une bande, et que les deux tôles polaires (8a, 8a') décalées entre elles de 180° sont enfichées sur le second flasque du corps de bobine (5).
18. Procédé selon la revendication 17, catacté- risé par le fait que les tôles polaires (8, 8') sont découpées dans une bande de tôle (25) de façon à être liées par une broche de branchement (8a, 8a'), les tôles polaires pour les côtés de montage différents étant obtenues par une séparation différente (26, 27) des broches de branchement (8a, 8a').
19. Procédé selon la revendication 17 ou 18, caractérisé par le fait qu'après avoir garni le corps de bobine (1; 31) avec les tôles polaires (8, 8'; 38, 38') et avec l'armature (6; 36), on dépose avec une matrice chauffée, sur les deux côtés frontaux et en tant que feuille d'étanchéité (9, 12; 39, 42), une feuille composite, que l'aimant permanent (10; 40) et l'armature (13; 43) sont mis en place et que le relais reçoit une masse de coulée dans un moule.
EP84112526A 1983-10-20 1984-10-17 Relais électromagnétique et méthode pour sa fabrication Expired EP0140284B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112526T ATE35748T1 (de) 1983-10-20 1984-10-17 Elekromagnetisches relais und verfahren zu dessen herstellung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19833338208 DE3338208A1 (de) 1983-10-20 1983-10-20 Elektromagnetisches relais und verfahren zu dessen herstellung
DE3338208 1983-10-20
DE8411399U 1984-04-11
DE19848411399 DE8411399U1 (de) 1984-04-11 1984-04-11 Elektromagnetisches Relais

Publications (2)

Publication Number Publication Date
EP0140284A1 EP0140284A1 (fr) 1985-05-08
EP0140284B1 true EP0140284B1 (fr) 1988-07-13

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Application Number Title Priority Date Filing Date
EP84112526A Expired EP0140284B1 (fr) 1983-10-20 1984-10-17 Relais électromagnétique et méthode pour sa fabrication

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EP (1) EP0140284B1 (fr)
DE (1) DE3472732D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059754B1 (fr) * 2009-06-23 2022-03-09 Panasonic Intellectual Property Management Co., Ltd. Relais electromagnetique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445504B (sv) * 1984-11-13 1986-06-23 Tocksfors Verkstads Ab Reletungenhet
US4672344A (en) * 1985-04-19 1987-06-09 Siemens Aktiengesellschaft Polarized electromagnetic relay
DE3620942A1 (de) * 1986-06-23 1988-01-07 Siemens Ag Elektromagnetisches relais
EP0334336B1 (fr) * 1988-03-25 1993-09-29 Siemens Aktiengesellschaft Relais électromagnétique polarisé à contacts multiples

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH614068A5 (en) * 1977-03-30 1979-10-31 Standard Telephon & Radio Ag Electromagnetic relay
DE2723220C2 (de) * 1977-05-23 1979-08-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Polarisiertes elektromagnetisches Miniaturrelais

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3059754B1 (fr) * 2009-06-23 2022-03-09 Panasonic Intellectual Property Management Co., Ltd. Relais electromagnetique

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DE3472732D1 (en) 1988-08-18
EP0140284A1 (fr) 1985-05-08

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